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On November 10, 2026, OpenAI launched the ModRetro Chromatic plugin for the Codex desktop app, allowing users to build and play real Game Boy Color games through prompts. The plugin provides tools such as sprite animation, collision maps, a built-in emulator for playtesting, screen annotation and modification, and button sequence testing; projects can be edited in GB Studio, or written in C using GBDK-2020, or with a custom engine. Together with the Chromatic handheld, a rewritable flash cartridge, and a USB data cable, ROMs can be installed and run on the device. On the same day, OpenAI's merchandise store Supply Co. listed the ModRetro Chromatic Codex Edition handheld, jointly launched with ModRetro, priced at $200; the bundle includes a programmable Codex game cartridge and a carrying case, and users can run games in three ways: in a browser emulator, on the handheld, or by writing to the cartridge. The product currently ships only to the United States, Canada, Australia, New Zealand, Japan, the United Kingdom, and the EU; a $50 Codex programmable flash cartridge is also sold separately.
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OpenAI Lists ModRetro Chromatic Codex Edition Handheld at $200Developments
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ModRetro's Codex plugin supports building Game Boy Color games
Source:OpenAI DevelopersOpenAI lists the ModRetro Chromatic Codex Edition handheld console
Source:36Kr · AI
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Nov 10
36Kr · AI
OpenAI Lists ModRetro Chromatic Codex Edition Handheld at $200
OpenAI's merchandise store Supply Co. has listed the ModRetro Chromatic Codex Edition handheld, jointly launched with ModRetro, at $200; the bundle includes a programmable Codex game cartridge and a carrying case. After installing the ModRetro Chromatic plugin in the Codex desktop app, users can describe ideas in natural language to generate games and run them in three ways: in a browser emulator, on the handheld, or written to a cartridge. The product currently ships only to the United States, Canada, Australia, New Zealand, Japan, the United Kingdom, and EU regions; a $50 Codex programmable flash cartridge is also sold separately.
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OpenAI DevelopersFirst-party
Building retro handheld games with Codex and the ModRetro Chromatic
OpenAI has launched a ModRetro Chromatic plugin for the Codex desktop app, letting users build and play real Game Boy Color games through prompts. The plugin provides tools such as sprite animation, collision maps, in-emulator playtesting, annotated screen edits, and button-sequence testing; projects can be edited in GB Studio, or written in C with GBDK-2020 or a custom engine. Paired with the Chromatic handheld, a rewritable flash cartridge, and a USB data cable, ROMs can be installed and run on the device.
OpenAI DevelopersRelated discussion
OpenAI Developers joined this discussion
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